Yes she is loosing tons of hair right now and it’s going everywhere
Definitely avoid dairy in your diet and see if it helps I never saw blood specs in my baby’s poo but it was mucousy. He was never fussy either. Always pleasant but based on his poo, the pediatrician recommended I avoid dairy the first few weeks. I reintroduced dairy into my diet around 5-6 months I’m now dairy free though because I found I have an intolerance
Red bits could definitely be blood. I believe the tests you can have done for intolerances can be really inaccurate and unreliable. Also is that hairs in the nappy too?